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Finding the Fourth Proportional to 499,398.87, 689,173.34 and 273,044.37

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Solution

The fourth proportional to 499,398.87, 689,173.34 and 273,044.37 is: 376,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,398.87 : 689,173.34 = 273,044.37 : x
  2. Step 2: Convert to fraction form
    499,398.87/689,173.34 = 273,044.37/x
  3. Step 3: Cross multiply
    499,398.87x = 689,173.34 × 273,044.37
  4. Step 4: Simplify right side
    499,398.87x = 188,174,899,075.87
  5. Step 5: Solve for x
    x = 188,174,899,075.87/499,398.87
  6. Step 6: Final answer
    x = 376,802.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.